The Nigerian suspects were found to have lavished their ill-gotten wealth on expensive fabrics and jewelleries, including Cartier and Rolex watches.

The police said efforts to confiscate all the asset linked to the convicts had commenced.

In at least 228 scam operations between 2014 and 2018, the court found that the convicts duped scores of UK residents to the tune of £10,112,312.54, about N4.7 billion. At least 69 victims testified in the trial.

The UK National Fraud Intelligence Bureau closed in on the syndicate after several victims reported the fraud online with specific details of how they were swindled. Detectives subsequently identified a pattern amongst members of the gang and the reported cases.

The gang used computer malware to intercept and steal the log-in details of email accounts belonging to businesses and private individuals worldwide, with the intent of identifying high-value financial transactions, the court heard.

Police said the gang intercepted emails about these transactions and sent spoof emails, duping the victims into paying the funds into alternative UK-based “mule” bank accounts, instead of the intended recipient. The accounts were specifically set up and controlled by the fraudsters for their illicit acts.

A total of 165 “mule” accounts, opened with fake identification documents or bought from unscrupulous account holders, were identified by detectives, police found.

They were used to receive the proceeds of the diversion fraud, where the money was quickly transferred onto other accounts, some of which were untraceable.

The fraudsters also used the funds from mule accounts to buy and export thousands of pounds of baby milk to Nigeria in an apparent money laundering.

One of the syndicate’s victims was a small construction company with a small team of employees in southwestern England. It shut down in 2017 after being defrauded of about £13,000 by the gang, court heard.

Bonaventure Chukwuka was sentenced to 11 years in prison. Emmanuel and Christian Chukwuka, received five and 2 years eight months’ imprisonment, respectively.

Queen was sentenced to community service, while grace received a conditional release.

The Chukwuka brothers were the first to be arrested in connection to the fraud in January 2018.

Abassi established a sham company and opened business bank accounts, one of which received £1.9 million on behalf the gang, court found. He received two years and three months for his involvement.

The police hailed the ruling as a victory for their efforts against Internet fraud, and promised to intensify their crackdown on perpetrators.

The verdict comes barely a few months after a Nigerian politician was jailed in the UK for human trafficking.

Adesunbo Onitiri, the People’s Democratic Party (PDP) Lagos Central Senatorial candidate in the last elections, has flayed the Federal Government’s order on Nigerians to surrender their guns before June 1. He said the order should be reconsidered in view of the growing insurgency and kidnappings in the country.